Bronk Stone

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Bronk Stone

Bronk Stone

English (manga)

Tetsuo Takeda

English (anime)

Bronk Stone




Takeda Tetsuo

Manga debut
Anime debut

Yu-Gi-Oh! ZEXAL episode 1: "Go With the Flow, Part 1"

Video game debut

Duel Terminal - Ouroboros, Wicked Dragon of Destruction!!



  • Male

Super Secret Number Cards Investigation Club



Voice actors

Bronk Stone, known as Tetsuo Takeda in the manga and Japanese versions, is one of the main supporting characters in Yu-Gi-Oh! ZEXAL. He was originally a bully, but now is one of Yuma Tsukumo's friends and is a skilled Duelist, who attends the same school as Yuma, Shark, and Tori.



Bronk's design is quite unique, as he is drawn in a completely different way to the other characters within ZEXAL. He's usually seen wearing a cap backwards with his hair sticking out of the front and sides.

When in his school attire, he sports a red and white shirt, with a red tie and blue pants strapped with black suspenders which feature round, metal orbs. When in his casual attire, he wears an orange t-shirt with a smiley face on which reveals the bottom of his stomach, much like his school attire does.


Bronk is quite a competitive and adamant person who takes pleasure in other people's embarrassment, even if it is his own friends; much like the times when he makes Yuma get worked up and challenge events which he can't win, which ends up in Bronk and the other classmates laughing.

He is also a strong-willed person who doesn't like to show his emotions, like when he obtained the broken piece of Yuma's pendant and said he just "came across it", when Shark had clearly kicked it into a small forest near their school. Despite this, he seems to have friendly rivalry with Yuma, as he tends to be on Yuma's side and though doesn't always believe that he'll be able to turn around his Duels, he supports Yuma most of the time.

Bronk seems to have an incredibly strong will. When Yuma was possessed by Number 96: Dark Mist, he used Yuma's "Number 39: Utopia" to save him, and was quickly able to shake off the corrupting effect that strikes most Numbers users (although probably due to holding Emperor's Key).


The 鉄 (Tetsu) in Bronk's Japanese name (Tetsuo) means Iron, and the 男 (O) can be read as Otoko, which means man or guy. So, his name can be read as "The Iron Guy", mirroring his Deck type.

Anime biography


Bronk originally met Yuma after he joined his and Tori's class when they were younger. After Yuma claimed that he would be the Dueling champion, Bronk challenged his statement and despite beating him many times, found Yuma never gives up. Yuma has firey spirit, therefore befriended him.[2]


Shark and Bronk

A defeated Bronk is helpless against Shark.

One morning whilst Yuma was late for school, he ran into Bronk who challenged him to a race. As the two raced, Bronk kicked a Litterbot into Yuma's path, causing him to fall over. Bronk then drives away, cheering at not only winning the race, but Yuma's downfall. Bronk is later spotted by Tori when she and Yuma are wandering around the Heartland Middleschool grounds. She instantly notices that he is Dueling Reginald Kastle, so the two run up just in time to see Bronk get defeated by the Duelist. Reginald then takes Bronk's Deck as he had put it up as an ante, due to the pressure of Reginald and his friends calling Bronk pathetic for not originally agreeing with the terms. After Yuma defends Bronk, Reginald snaps his pendant and throws half of it in the bushes. Yuma went to punch Reginald, but Bronk stopped him as he didn't want him to stoop to his level. The next day, Bronk noticed how depressed Yuma had become without his full pendant, therefore managed to find the second half and gave it to Yuma whilst walking home from school. He then told Yuma to not Duel Reginald, but Yuma argued that he had to for himself, not for Bronk. Bronk then went with Yuma to watch him Duel against Reginald and was shocked at not only Yuma's Dueling, but also at Reginald Summoning "Number 17: Leviathan Dragon" instead of "Submersible Carrier Aero Shark".[3]
Tori and Bronk

Bronk and Tori cheering Yuma on.

As the Duel continued, Yuma continued to baffle Bronk such as claiming that there was a "Dueling ghost", telling him what to do. Furthermore, when Yuma Summons "Number 39: Utopia", Bronk is extra shocked as he had never seen Yuma use such a card and the fact that it was also a "Number". When Yuma defeated Reginald, Bronk cheered along with Tori as he managed to get his Deck back.[4]

After beating Reginald, Bronk was walking home with Yuma and Tori as a virus erupted throughout Heartland City. Which caused the various technology throughout the city such as traffic lights and vending machines to malfunction. Yuma tried to steal drinks from the vending machines, but was picked up and put inside a malfunctioning Litterbot. After arriving at Yuma's house, the group hear Kari Tsukumo scream, to which they all rush to her aid... only to find her sitting in her computer room with a broken computer. The three escape before she took out her anger on them.[5]

One morning at school, Flip, a boy from Bronk's and Tori's elementary school tried to reward Yuma with a "Baby Tiragon" card, which Bronk and Tori kept Yuma from claiming. Bronk told Yuma that it was because Flip was a dark and mischievious person who always causes mayhem. Despite managing to keep Flip away from Yuma at school, they couldn't stop him mailing Yuma the card. After which, Flip began a masterful plan in which singled Yuma out at school, therefore making him alone. Bronk didn't believe that Yuma would do such stuff, for example, making frogs attack Spencer.[6]

To prove Yuma's innocence, Bronk and Tori set out on finding evidence. Tori manages to see that the images of Yuma had been altered due to blurs around the image edges. They then decide to find Spencer to ask him about the events. After visiting his house and running around school, they manage to locate him and find out that Flip hid him and made him take on an enduring task so that no one would find him in time so that he could Duel Yuma and take his "Number 39: Utopia". They then run to the mall to see Yuma defeat Flip, and then befriend him.[7]

When Nelson Andrews, the star of ESPer Star Sparrow visited Heartland City, Bronk decides to see if they can see him along with his friends. After managing to sneak into the studios, Yuma manages to cause the destruction of a large portion of the set, notifying the security of them being there, resulting in Bronk and Tori being kicked out. Bronk then wonders where Yuma went after Fuya rescued him in order to give him his Deck back.[8]

After Yuma manages to find Nelson and challenges him to a Duel, Tori calls Bronk and Mrs. Andrews to go and watch the Duel. After Yuma wins, Bronk celebrates with Tori. On their way home, Tori and Yuma get into an arguement, which amused Bronk whilst Reginald looks on in the background.[9]

One morning, Bronk is discussing Yuma's current winning streak with Tori and says that Yuma's catchphrase of "I'm Feeling the Flow" is meant more for losing, rather than winning. He is then shocked at the clothes Yuma is wearing when he turns up for school. After Yuma's Duel with Cathy, he tries to think who Cathy is, but can't remember as she lurks in the background rather than socialising.[10]

After Yuma's loss with Shark, Bronk turned his back on Yuma for breaking his promise not to use Numbers, which included not wanting to see Yuma and Shark Duel against Scorch and Chills, though Tori talked him into watching. He was present at Yuma's Duel with Shark and their Duel against Scorch and Chills and forgave Yuma for lying.

In episode 13, he informed Yuma, Tori and Caswell of a new Duel plaza that opened up in a neighboring town.

In episode 15, Bronk and Tori informed Yuma of the upcoming World Duel Carnival and accompanied Yuma and Tori on his errand to deliver food to Roku at the Duel Sanctuary. Bronk, later joined by Kari and Haru was present at Yuma's Duel against Kaze, who was under the possession of "Number 12: Crimson Shadow Armor Ninja". When Roku handed Yuma the Duel Sanctuary's Secret Deck, Bronk exclaimed that Yuma should beef his first Deck with the Secret Deck to use for the WDC.

In episode 17, Bronk, Caswell and Tori were discussing to Yuma of different people who were mysteriously hospitalized, and also happened to carry different Numbers. When Yuma refused to talk, Bronk, Caswell, Tori, Flip and Cathy formed the Super Secret Number Cards Investigation Club, a group made to solve the Numbers mystery without the help of Yuma. The only leads the Super Secret Number Cards Investigation Club got was Cathy talking about Yuma talking to Astral about Numbers and Kite Tenjo. The search was useless, until Flip found the devious fortune-teller Fortuno, who they thought would lead them to what Number cards are. Fortuno kidnapped the Club, except for Cathy, enticing Yuma to Duel Fortuno. Bronk and the Club witness in horror as Fortuno used the powers of "Number 11: Big Eye" and "Number 16: Shock Master" to put Yuma in a pinch. When Yuma and Astral were feeling hope, Bronk and the Super Secret Number Cards Investigation Club watched as they saw Astral for the first time and witnessed the Summoning of "Number C39: Utopia Ray". After Yuma defeated Fortuno, the Super Secret Number Cards Investigation Club went to thank Astral for saving them instead of Yuma.

When Yuma recovered Number 96: Dark Mist, Bronk complained that Yuma was just attacking recklessly without listening and they got into a fight, and didn't talk for a couple of days. When they ran into each other, Bronk accidentally knocked the Emperor's Key, causing Astral to lose control over Number 96, who took control of Astral and turned Yuma into his puppet. Yuma gave Bronk his "Number 39: Utopia" so that he can Duel the Wicked Number to rescue him and Astral.

World Duel Carnival

During the day before the World Duel Carnival, Bronk was the most excited out of his friends to have received a Heart Piece. He then mocks Yuma for thinking that they just give them out as anyone from around the world could enter, which would take forever to carry out. After Yuma runs to Heartland to claim a piece, Bronk goes along with him and is shocked at his childish behavior. The night before the tournament, Bronk is seen when Yuma thinks about his friends and their Decks. During the opening ceremonies, Bronk accompanies his friends to see Mr. Heartland explain the rules. He then charges off with Flip, leaving the rest of the gang just before Striker challenges Yuma to a Duel.[11]

IV Bronk Caswell duel

Bronk Dueling Quattro and Caswell.

During the second day of the World Duel Carnival, Bronk along with Caswell are spotted by Yuma and Tori in a rush. They explain that they had arranged a Duel with Quattro. Yuma attempts to warn Bronk of how Quattro treated Reginald and Rio Kastle, but Bronk ignores this. They then arrive at the location which Yuma finds dark and creepy, but Bronk defends Quattro as a celebrity like him would be swamped with attention in public, whereas in a quiet location, they can enjoy the Duel. After getting his D-Pad signed by his hero, he along with Caswell and Quattro begin a Battle Royal. Throughout the Duel, Quattro compliments Bronk and Caswell on their moves, but it all turns out to be a facade. Despite managing to Summon their Signature cards, Quattro manages to perform a One Turn Kill on both of them with his "Number 15: Gimmick Puppet Giant Killer", hurting them in the process.[1]

After the Duel, Reginald Kastle appears to Duel Quattro. Bronk takes this opportunity to transport a knocked out Caswell to the Heartland City Hospital in order to recover. He tells Yuma to stay and watch the Duel whilst he and Tori take Caswell to the hospital.[12]

After a few hours of recovering in the hospital, Bronk returns to Yuma to find out that only he is remaining within the tournament. He then goes with Yuma and his friends after Yuma's Heart Piece is stolen by a dog. When managing to locate where the dog had gone, Bronk was shocked when a dog, named Chukichi spoke to the gang. After Cathy challenged the dog to a Duel, Bronk watched with Cathy's cat sat on his head. He was even more shocked when the talking dog was revealed to actually be Dog-chan, who was hidden in a device on the dogs back. After Dog-chan defeated Cathy, Bronk was happy that everything was back to normal as Yuma claimed his Heart Piece back.[13]

He and the rest of his friends greet Yuma, before finding a weak opponent for Yuma. After finding Flip, everyone watches in amazement the Duel between Nistro and Nelson.[14] Like the others, he comes to support Yuma as he prepares to Duel Tres.[15] When Yuma lost the will to fight, Bronk expressed his frusteration, saying Yuma was the kind of guy who never gave up.[16] Like the others, he was astonished as he witnessed Astral and Yuma's ZEXAL Change.[17]

Manga biography


File:Bronk Manga.png

Tetsuo is part of Yuma's circle of friends, together with Kotori, Cathy and Takashi. At school, when Yuma keeps challenging himself with impossible tasks with his "Kattobingu" spirit, while Tetsuo usually makes fun of him, Kotori is always worried. Yuma uses to Duel Tetsuo very often; however, he apparently was never able to beat Tetsuo.

One day, Kotori and Yuma find Tetsuo has been forced to Duel by a guy nicknamed Shark, and after being defeated, he takes Tetsuo's Deck. Yuma confronts him, but Shark takes his pendant and breaks it. Enraged, Yuma challenges him to a Duel. Shark accepts it, and says that they will Duel on Sunday, in the train station.

Later, Yuma keeps searching for the other half of his broken pendant until late, and Kotori stays with him all the time. Tetsuo then appears and tells Yuma not to go, as he would never be able to win, and that it was a problem of his. But Yuma declines, saying that that's already a problem of his as well, as Shark broke his most important thing. Tetsuo then gives Yuma the other half of the pendant, saying that he found it accidentally. However, it can be clearly seen that Tetsuo was searching for it as well, judging by its hands. Sunday, when Yuma goes to Duel Shark, Kotori and Tetsuo go to watch the Duel and cheer Yuma up.[18][19] During the Duel, as Astral appears to Yuma, Kotori gets worried about him talking "to himself". Yuma then asks if she and Tetsuo can't see Astral, and they say they can't.[20] Later, when Yuma defeats Shark, Kotori and Tetsuo then congrats him in joy.[21]

After Yuma's loss to Kaito Tenjo, Tetsuo, Takashi, Cathy, Kotori and Tokunosuke form the Numbers Club in order to help Yuma.[22]

Later, The Numbers Club, together with Yuma and Astral, go to the Heartland Theme Park to find "Numbers".[23]

After their escape from the park, Yuma and the members of the Numbers Club gather in Cathy's house. Tetsuo asks Cathy what she wanted to show them. She then presses a cat paw-like button, which opens a door leading to a big room, with many researchers and big computers. Cathy explains that as an apology for the trouble she caused, the Numbers Club's headquarters would be established there, where they can look up mysterious phenomenons happening throughout the world, and therefore, locate the "Numbers".

Yuma tells them that Astral told him that now he got three "Numbers", some of his memories have returned. Yuma asked what he remember, and Astral says his enemy is Dr. Faker, who plans on using the hidden powers of the "Numbers" to destroy the Astral World; However, it is linked to this world. So, if the Astral World dies, this one will die as well. The Numbers Club then decides to save the world from Dr. Faker.[24]

Yu-Gi-Oh! D Team ZEXAL

Tetsuo (D Team ZEXAL)

Tetsuo in Yu-Gi-Oh! D Team ZEXAL.

In the spin-off manga Yu-Gi-Oh! D Team ZEXAL, Tetsuo forms a Dueling Team with Kotori, Takashi and Yuma, called Team ZEXAL. Yuma is accompanied by a Dueling Ghost called Astral, but he can only be seen by Yuma. By that way, when Yuma talks to him, the others think he is talking to himself. This, in addition with Yuma's arriving late for the team's first meeting, makes Kotori and Takashi worry about Yuma being the leader, and Tetsuo challenges him to a Duel - if Tetsuo wins, he will be the leader. Yuma accepts the challenge, and wins, so that others accept him as the leader.[25]



Bronk plays a "Machine" Deck, which focuses on the manipulation of Gearspring Counters through the effect of his Spell and Trap Cards to grant his Machine-Type monsters additional ATK. He also uses an array of cards to gain an advantage through containing Machine-Type monsters such as "Iron Call" and "Iron Draw". His ace monster is "Tinplate Archduke"[1].


Opponent(s) Episode(s) Outcome(s)
Yuma Tsukumo 20 Win[Notes 1]
Reginald Kastle 1 Lose
Yuma Tsukumo 11 Win[Notes 2]
Yuma Tsukumo 11 Win
Yuma Tsukumo 12 Not shown[Notes 3]
Number 96: Dark Mist/Yuma Tsukumo 20 Win
Lilly 21 Lose (w/Yuma Tsukumo)

Pre-WDC Deck

World Duel Carnival

Opponent(s) Episode(s) Outcome(s)
WDC Duelist 33 Win[Notes 3][Notes 6]
Quattro, Caswell 33 Lose

Duel Puzzle

Opponent Episode Outcome
Heartland Tower Security Robot 60 No result (w/Tori Meadows)

Duel Puzzle Deck



Opponent(s) Rank(s) Outcome(s)
Yuma Tsukumo 1 Win (40 times; off-screen)
Ryoga Kamishiro 1 Lose
Yuma Tsukumo SP1 Win
Kaito Tenjo SP1 Lose

Yuma mentioned to his sister in Rank 1 that he was beaten at least 40 times by Tetsuo, while Tetsuo reminds Yuma in Special rank 1 that he has beaten him 50 times in a row.

Manga Deck

Yu-Gi-Oh! D Team ZEXAL

Opponent(s) Chaper(s) Outcome(s)
Yuma Tsukumo 1 Lose

In the spin-off manga, Tetsuo uses a Deck which contains cards from his anime and manga Decks, with the addition of few other Machine monsters.

D Team ZEXAL Deck

Video games

Duel Terminals

Ouroboros, Wicked Dragon of Destruction!!
Ouroboros, Wicked Dragon of Destruction!!


  1. 1.0 1.1 1.2 Yu-Gi-Oh! ZEXAL episode 33: "Foolish Fans": Bronk's WDC Profile
  2. Yu-Gi-Oh! ZEXAL episode 20: "Roots of the Problem"
  3. Yu-Gi-Oh! ZEXAL episode 1: "Go With the Flow, Part 1"
  4. Yu-Gi-Oh! ZEXAL episode 2: "Go With the Flow, Part 2"
  5. Yu-Gi-Oh! ZEXAL episode 3: "In The End, Part 1"
  6. Yu-Gi-Oh! ZEXAL episode 5: "Flipping Out, Part 1"
  7. Yu-Gi-Oh! ZEXAL episode 6: "Flipping Out, Part 2"
  8. Yu-Gi-Oh! ZEXAL episode 7: "The Sparrow, Part 1"
  9. Yu-Gi-Oh! ZEXAL episode 8: "The Sparrow, Part 2"
  10. Yu-Gi-Oh! ZEXAL episode 9: "Feline Frenzy"
  11. Yu-Gi-Oh! ZEXAL episode 26: "Let the Duels Begin!"
  12. Yu-Gi-Oh! ZEXAL episode 34: "Shark Bait"
  13. Yu-Gi-Oh! ZEXAL episode 39: "Pets Peeved"
  14. Yu-Gi-Oh! ZEXAL episode 45: "Ruffled Feathers"
  15. Yu-Gi-Oh! ZEXAL episode 47: "Sky's the Limit"
  16. Yu-Gi-Oh! ZEXAL episode 48: "Exit: Astral"
  17. Yu-Gi-Oh! ZEXAL episode 49: "Crestfallen"
  18. Yu-Gi-Oh! ZEXAL Rank 1: "The Name's Yuma!!Destined Meeting!!"
  19. Yu-Gi-Oh! ZEXAL Rank 2: "A Mysterious Life-Form?!"
  20. Yu-Gi-Oh! ZEXAL Rank 3: "Astral!!"
  21. Yu-Gi-Oh! ZEXAL Rank 4: "The Light of Hope!!"
  22. Yu-Gi-Oh! ZEXAL Rank 10: "New Enemies!!"
  23. Yu-Gi-Oh! ZEXAL Rank 11: "Heartland!!"
  24. Yu-Gi-Oh! ZEXAL Rank 19: "Messenger from the Moon!!"
  25. Yu-Gi-Oh! D Team ZEXAL Chapter 1: "Starting Duel Team ZEXAL!!"


  1. Bronk beat Yuma 4 times in a flashback.
  2. Bronk beat Yuma 19 times in a row off-screen.
  3. 3.0 3.1 This Duel occurred off-screen.
  4. This card was present in the Deck in his Duel against Number 96: Dark Mist-controlled Yuma Tsukumo only.
  5. This card is Set in episode 20, but is destroyed via the effect of Number 96's "Xyz Cyclone".
  6. Bronk's WDC profile shows he obtained two Heart Pieces. Each participant begins with one piece, which means he must have defeated a Duelist to obtain another one.
  7. 7.0 7.1 7.2 7.3 This card can be seen in his hand in episode 33.
  8. 8.00 8.01 8.02 8.03 8.04 8.05 8.06 8.07 8.08 8.09 8.10 8.11 8.12 8.13 8.14 8.15 This card is seen in the pool of Xyz Monsters that Bronk could Summon.
  9. 9.0 9.1 9.2 This card is seen in Bronk's hand in chapter 1.
  10. This card appears in Bronk's Duel Terminal Deck if the player scans in a Destiny Draw.

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